Phase 2 of SPEC-079. Migrates the learning plugin's meta-bearing runes (HowTo, Recipe) from the legacy slots + structure config shape to the new metaFields + zones + contentSlots model.
Tracking started Jun 2 — check back for trends.
plugins/learning/src/config.ts rewritten.
how-to is identifier-less in practice — the title carries the semantic). Metadata: both fields, with difficulty's sentimentMap preserved (beginner: positive, intermediate: neutral, advanced: caution).easy: positive, medium: neutral, hard: caution).transform: 'duration' on prep/cook fields preserved — the engine's transforms lookup still consumes it via MetaField (extend the type if needed).Per-rune CSS updated. Selectors in plugins/learning/styles/{howto,recipe}.css referencing __header-primary / __header-secondary rewritten to __eyebrow / __metadata. Recipe ingredient list quirks preserved.
RecipeIngredient untouched. Content container without meta projection — stays on the existing path.
Plugin tests updated. Tests in plugins/learning/test/ that snapshot rune output reflect the new DOM shape.
Backwards-compat shim warning silent for learning.
Docs. Learning rune doc pages (site/content/runes/learning/{howto,recipe}.md) — output-contract snippets updated.
Two-rune migration following the WORK-306 pattern. Recipe is the canonical case (matches the spec body's worked example); HowTo is a trimmed variant. Land both on one branch.
transform: 'duration' needs to keep working through the new path — extend MetaField to accept a transform?: keyof transforms field if it doesn't already, OR resolve duration in the rune's transform output before reaching the engine.
Completed: 2026-06-01
Branch: claude/spec-079-implementation
plugins/learning/src/config.ts rewritten. Both meta-bearing runes migrated:
estimatedTime (temporal, duration-transformed) + difficulty (category, sentiment-mapped beginner/intermediate/advanced). Both fields chip-row layout, no eyebrow projected (the title carries the semantic).prepTime, cookTime, servings, difficulty (with easy/medium/hard sentiment map preserved). Chip-row layout to match today's dense pill row.The legacy structure: { meta: { conditionAny: [...], children: [...] } } blocks are gone from both entries.
MetaField.transform field added to packages/transform/src/types.ts — accepts 'duration' | 'uppercase' | 'capitalize'. The resolveField function in engine.ts applies the transform to the resolved value before chip rendering, mirroring the legacy StructureEntry.transform behaviour. ISO 8601 durations like PT15M continue to render as 15m.
CSS rename. packages/lumina/styles/runes/howto.css had .rf-howto__meta (margin-bottom for the legacy meta wrapper) — renamed to .rf-howto__metadata since the new chip-row wrapper carries data-name="metadata". Recipe CSS untouched (no __meta selectors).
RecipeIngredient untouched — content container, no meta projection.
Contracts regenerated. 893 targeted tests pass; learning plugin's 15 tests pass.
transform: 'duration' carry-through. The work item flagged this as the key risk — preserved by adding transform to MetaField. The fix is small (5 LOC in resolveField) and lives in the engine, so future runes can use the same transform without per-rune machinery.tags modifier today; the trailer pattern doesn't apply.